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Finding the Fourth Proportional to 180,751.12, 249,438.40 and 100,180.44

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Solution

The fourth proportional to 180,751.12, 249,438.40 and 100,180.44 is: 138,250.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,751.12 : 249,438.40 = 100,180.44 : x
  2. Step 2: Convert to fraction form
    180,751.12/249,438.40 = 100,180.44/x
  3. Step 3: Cross multiply
    180,751.12x = 249,438.40 × 100,180.44
  4. Step 4: Simplify right side
    180,751.12x = 24,988,848,664.90
  5. Step 5: Solve for x
    x = 24,988,848,664.90/180,751.12
  6. Step 6: Final answer
    x = 138,250.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.